Multi-cvt drive system having differential epicycle gear set

ABSTRACT

The present invention utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; between the output ends of the mentioned two continuous variable transmissions, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be further installed according to actual needs.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a Continuation-In-Part of application Ser. No. 13/410,427, filed on Mar. 2, 2012, which is a Continuation-In-Part of application Ser. No. 13/403,198, filed on Feb. 23, 2012.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention provides a multi-CVT drive system having epicyclic gear set, which utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; between the output ends of the mentioned two continuous variable transmissions, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be further installed according to actual needs, so when differential operation is performed between the two loads, the stabilize device can be served to stable the operation of the drive system.

(b) Description of the Prior Art

When a conventional single power performs differential driving to two or more than two of individual loads of a common load body, a differential wheel set is often used for achieving the function of differential speed, the mentioned means has a shortage of not being able to generate the torque differential between the two loads.

SUMMARY OF THE INVENTION

The present invention provides a multi-CVT drive system having epicyclic gear set, which utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load;

The continuous variable transmission of the multi-CVT drive system having epicyclic gear set is individually installed and driven at the wheel sets at two sides of a common load body, and the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing an external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of a continuous variable transmission (CVT100) and a continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions;

Between the output ends of the mentioned two continuous variable transmissions, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be further installed according to actual needs, so when differential operation is performed between the two loads, the stabilize device can be served to stable the operation of the drive system.

According to the present invention, the multi-CVT drive system having epicyclic gear set can be applied in a vehicle or an industry-used, agriculture-used or specially-designed carrier with front wheel drive, or rear wheel drive, or four wheel drive, or multiple wheel drive or driven by belts installed at two sides.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view illustrating the common load body (L100) being installed with a first epicyclic gear set (EG101) driven by the rotary kinetic power of a rotary kinetic power source (P100), a continuous variable transmission (CVT100) being installed between a left end output shaft (1011) of the first epicyclic gear set (EG101) and a left side wheel set (W100) of the loading end, and a continuous variable transmission (CVT200) being installed between a right end output shaft (1012) and a right side wheel set (W200), according to one embodiment of the present invention.

FIG. 2 is schematic view illustrating a continuous variable transmission (CVT100) and a continuous variable transmission (CVT300) being individually installed between left end output shaft (1011) of the first epicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at the rear left side of the loading end and the wheel set (W300) at the front left side, and a continuous variable transmission (CVT200) and a continuous variable transmission (CVT400) being individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end and the wheel set (W400) at the front right side, according to one embodiment of the present invention.

FIG. 3 is schematic view illustrating a continuous variable transmission (CVT100) and a continuous variable transmission (CVT300) and a continuous variable transmission (CVT500) being individually installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at the rear left side, the wheel set (W300) at the front left side and the wheel set (W500) at the middle left side of the loading end, and a continuous variable transmission (CVT200) and a continuous variable transmission (CVT400) and a continuous variable transmission (CVT600) being individually installed between the right end output shaft (1012) thereof and the wheel set (W200) at the rear right side, the wheel set (W400) at the front right side and the wheel set (W600) at the middle right side, according to one embodiment of the present invention.

FIG. 4 is a schematic view illustrating FIG. 2 being further installed with a first epicyclic gear seat (EG101) and a second epicyclic gear set (EG102) driven by the rotary kinetic power of the rotary kinetic power source (P100), and a continuous variable transmission (CVT100) being installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end, a continuous variable transmission (CVT200) being installed between the right end output shaft (1012) and the wheel (W200) at the rear right side, and a continuous variable transmission (CVT300) being installed between the left end output shaft (1021) of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side, and a continuous variable transmission (CVT400) being installed between the right end output shaft (1022) and the wheel set (W400) at the front right side, according to one embodiment of the present invention.

FIG. 5 is a schematic view illustrating FIG. 3 being further installed with a first epicyclic gear seat (EG101), a second epicyclic gear set (EG102) and a third epicyclic gear set (EG103) driven by the rotary kinetic power of the rotary kinetic power source (P100), and a continuous variable transmission (CVT100) being installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end, a continuous variable transmission (CVT200) being installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side, a continuous variable transmission (CVT300) being installed between the left end output shaft (1021) of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side, a continuous variable transmission (CVT400) being installed between the right end output shaft (1022) and the wheel set (W400) at the front right side, a continuous variable transmission (CVT500) being installed between the left end output shaft (1031) of the third epicyclic gear set (EG103) and the wheel set (W500) at the middle left side, and a continuous variable transmission (CVT600) being installed between the right end output shaft (1032) and the wheel set (W600) at the middle right side, according to one embodiment of the present invention.

FIG. 6 is a schematic view illustrating FIG. 1 being installed with a direction changing signal sensor (S100) to send a signal to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), according to one embodiment of the present invention.

FIG. 7 is a block diagram illustrating the structure in which the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), the output end clutch devices (CL100), (CL200), and transmission devices (T100), (T200) being combined at two output sides of the first epicyclic gear set (EG101), according to one embodiment of the present invention.

FIG. 8 is a schematic view illustrating FIG. 7 being installed with a direction changing signal sensor (S100) to send a signal to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), according to one preferred embodiment of the present invention.

DESCRIPTION OF MAIN COMPONENT SYMBOLS

-   B100: electric power source -   CL101: input end clutch device -   CL 100     CL200     CL300     CL400     CL500     CL600: output end clutch device -   CVT100     CVT200     CVT300     CVT400     CVT500     CVT600: continuous variable transmission -   EG101: first epicyclic gear set -   EG102: second epicyclic gear set -   EG103: third epicyclic gear set -   ECU100: control unit -   1011     1021     1031: left end output shaft -   1012     1022     1032: right end output shaft -   L100: common load body -   MI100: external operation interface -   P100: rotation kinetic power source -   S100: direction changing signal sensor -   SDT100     SDT200     SDT300: stabilize device -   T100     T101     T200     T300     T400     T500     T600: transmission device -   W100     W200     W300     W400     W500     W600: wheel set

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

When a conventional single power performs differential driving to two or more than two of individual loads of a common load body, a differential wheel set is often used for achieving the function of differential speed, the mentioned means has a shortage of not being able to generate the torque differential between the two loads.

The present invention provides a multi-CVT drive system having epicyclic gear set, which utilizes the rotary kinetic power of a rotary kinetic power source to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device, then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; the mentioned common load body (L100) is mainly defined as the frame body of a vehicle, and is installed with a rotary kinetic power source, relative operation and transmission interface devices, and installed with loading wheel sets driven by the rotary kinetic power source and installed with non-powered wheels not being driven by the rotary kinetic power source (P100) according to actual needs, thereby jointly carrying the common load body (L100).

The continuous variable transmission of the multi-CVT drive system having epicyclic gear set is individually installed and driven at the wheel sets at two sides of a common load body, and the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing an external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of a continuous variable transmission (CVT100) and a continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions;

-   -   external operation interface (MI100): related to a linear analog         type, or digital type, or hybrid type external control device,         constituted by a operation mechanisms and/or electromechanical         devices, and/or solid state electric circuits which are         controlled by manual force, mechanical force or electric power,         and served to control the operation status of the rotary kinetic         power source (P100) and/or to control the operation of the         continuous variable transmission;

According to the multi-CVT drive system having epicyclic gear set, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be installed at opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets, and when the differential operation is performed between two loads, the stabilize device is served to stabilize the operation of the drive system; the stabilize device includes a limited slip differential, or a coupling torque dual shaft connecting device composed of a coupling device having slip damp, e.g. a dual shaft structure configured by fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect, and two rotating ends of the stabilize device are respectively connected to: one or more than one location of the opposite locations horizontally and coaxially defined on the following transmission operation sets, including:

-   (1) installed between wheel set rotation parts oppositely at the     left side and the right side; -   (2) installed between opposite output ends of the continuous     variable transmissions at the left side and the right side; -   (3) installed between opposite output ends of clutch devices at the     left side and the right side; -   (4) installed between the input end or the output end oppositely at     the left side and the right side of the transmission device; -   (5) installed between the wheel set rotation part at the left side     and the wheel set rotation part at the right side;

By installing the mentioned stabilize device for the driving operation, when the load varying at individual loading end, or the control required by the operation state of the opposite continuous variable transmissions, or the unstable state during operation, the stabilize device can be served to stabilize the system; the stabilize device can be optionally installed according to actual needs.

According to the multi-CVT drive system having epicyclic gear set, between the input end of individual continuous variable transmission to the wheel set of the loading end, a stepped or continuous variable transmission having fixed speed ratio for acceleration or deceleration or changing direction can be further installed at one or more than one of following locations, including:

-   (1) installed at the input end of the continuous variable     transmission; -   (2) installed at the output end of the continuous variable     transmission; -   (3) installed at the input end of the clutch device; -   (4) installed at the output end of the clutch device; -   (5) installed at the input end of the wheel set at the loading end;

The mentioned transmission device is consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets, and composed of a transmission device having fixed speed ratio for acceleration or deceleration or changing direction, or a manually-operated or automatic or semi-automatic speed ratio varying or belt type continuous variable transmission, or a hydraulic torque converter; the transmission device can be optionally installed according to actual needs.

According to the multi-CVT drive system having epicyclic gear set, between the input end of individual continuous variable transmission and the wheel set of the loading end, a clutch device can be further installed at one or more than one of following locations, including:

-   (1) installed at the input end of the continuous variable     transmission; -   (2) installed at the output end of the continuous variable     transmission; -   (3) installed at the input end of the transmission device; -   (4) installed at the output end of the transmission device; -   (5) installed at the input end of the wheel set at the loading end;

The mentioned clutch device is controlled by manual force or centrifugal force, or controlled by the external operation interface, and can be served as a clutch device or structure having function of performing transmission engaging or releasing while being driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force, and has a rotary input end and a rotary output end; the output end clutch device further includes a function of being driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch device controlling coupling torque through exciting current, or a wet type multi-plate clutch device driven by mechanical force and/or pressure and/or hydraulic force;

The structure of the output end clutch device includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The clutch device can be optionally installed according to actual needs.

According to the present invention, the multi-CVT drive system having differential epicyclic gear set can be applied in a vehicle or an industry-used, agriculture-used or specially-designed carrier with front wheel drive, or rear wheel drive, or four wheel drive, or multiple wheel drive or driven by belts installed at two sides.

Embodiments according to the present invention are illustrated as followings:

FIG. 1 is a schematic view illustrating the common load body (L100) being installed with a first epicyclic gear set (EG101) driven by the rotary kinetic power of a rotary kinetic power source (P100), a continuous variable transmission (CVT100) being installed between a left end output shaft (1011) of the first epicyclic gear set (EG101) and a left side wheel set (W100) of the loading end, and a continuous variable transmission (CVT200) being installed between a right end output shaft (1012) and a right side wheel set (W200), according to one embodiment of the present invention.

As shown in FIG. 1, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the left side wheel set (W100) of the loading end of the common load body (L100), and the continuous variable transmission (CVT200) is installed between the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) and the right side wheel set (W200), thereby forming the drive system capable of being operated in the differential speed and variable speed state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101); the transmission device (T101) can be optionally         adopted according to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT100), the right end output shaft (1012) is         served to drive the input end of the continuous variable         transmission (CVT200);     -   continuous variable transmission (CVT100), (CVT200): the         continuous variable transmission (CVT) is e.g. structured by         continuous variable transmissions having several structural         configurations such as a rubber belt type, metal belt type,         chain type continuous variable transmission, or an electric         continuous variable transmission (ECVT), or a friction disk         type, or a conventional different-shaft type continuous variable         transmission, which includes a continuous variable transmission         capable of individually and automatically varying speed ratio         along with the loading torque, or a continuous variable         transmission capable of individually and passively varying speed         ratio automatically along with the driving rotation speed at the         input end and/or the loading torque, or a continuous variable         transmission utilizing an external operation interface (MI100)         to actively control the speed ratio, so as to perform all or a         part of the following controls, including: (1) actively and         synchronously controlling the speed ratios of a continuous         variable transmission (CVT100) and a continuous variable         transmission (CVT200); (2) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100) and the continuous variable transmission (CVT200) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmissions;     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100) and/or the         continuous variable transmission (CVT200), or for controlling         the control unit (ECU100) so as to further control the operation         state of the rotary kinetic power source (P100), and/or control         the operation speed ratios of the continuous variable         transmission (CVT 100) and/or the continuous variable         transmission (CVT200);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B 100) and controlled by the external         operation interface (MI100) or operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT100) and/or the continuous variable         transmission (CVT200);     -   stabilize device (SDT100): constituted by a limited slip         differential, or a dual shaft connecting device composed of a         coupling device having slip damp coupling torque, including a         stabilize device with the dual shaft structure configured         through fluid viscous effect, hydrodynamic damp effect,         mechanical friction effect, electromagnetic vortex effect or         power generation reverse torque effect; wherein two rotating         ends thereof are respectively connected between the left side         wheel set (W100) and the right side wheel set (W200) of the         loading end; during the driving operation, if the load varying         at the individual two sides of the loading end causes the         unstable operation, with the slip damp coupling torque of the         stabilize device (SDT100) installed between the wheel sets at         the left and right sides, the operation of the system can be         stabilized; the stabilize device (SDT100) can be optionally         installed according to actual needs;

According to the embodiment disclosed in FIG. 1, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200): the output end of the         transmission device (T100) is served to drive the left side         wheel set (W100) of the loading end, and the input end thereof         is driven by the rotary kinetic power from the output end of the         continuous variable transmission (CVT100); the output end of the         transmission device (T200) is served to drive the right side         wheel set (W200), and the input end thereof is driven by the         rotary kinetic power from the output end of the continuous         variable transmission (CVT200); the transmission device (T100)         and the transmission device (T200) are consisted of mechanical         gear sets, or chain sets, pulley sets or linkage rod sets, and         structured as a transmission device having fixed speed ratio for         acceleration or deceleration or changing direction or having         switchable multi-step speed ratios, or a manually-operated or         automatic or semi-automatic speed ratio or belt type continuous         variable transmission, or a hydraulic type torque converter; the         transmission devices (T100), (T200) can be optionally installed         according to actual needs;

According to the embodiment disclosed in FIG. 1, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200): the output end clutch         device (CL 100) is installed between the output end of the         continuous variable transmission (CVT100) and the wheel set         (W100) for controlling the continuous variable transmission         (CVT100) to output the rotary kinetic power to the wheel set         (W100), and the output end clutch device (CL200) is installed         between the output end of the continuous variable transmission         (CVT200) and the wheel set (W200) for controlling the continuous         variable transmission (CVT200) to output the rotary kinetic         power to the wheel set (W200); the output end clutch device         (CL100) and the output end clutch device (CL200) include being         controlled by manual force or centrifugal force, or controlled         through the external operation interface (MI100) and the control         unit (ECU100), and formed as a clutch device or structure driven         by electric force and/or magnetic force and/or mechanical force         and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the output end clutch device can         further includes being driven by electric force and/or magnetic         force and/or mechanical force and/or air pressure and/or         hydraulic force for controlling the coupling torque between         engaging and releasing, e.g. an electromagnetic wet type         multi-plate clutch controlling coupling torque through magnetic         exciting current, or a wet type multi-plate clutch driven by         mechanical force and/or air pressure and/or hydraulic force;

The structure of the output end clutch device (CL100), (CL200) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the left side wheel set (W100) and the right side wheel set (W200) of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200).

FIG. 2 is schematic view illustrating a continuous variable transmission (CVT100) and a continuous variable transmission (CVT300) being individually installed between left end output shaft (1011) of the first epicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at the rear left side of the loading end and the wheel set (W300) at the front left side, and a continuous variable transmission (CVT200) and a continuous variable transmission (CVT400) being individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end and the wheel set (W400) at the front right side, according to one embodiment of the present invention;

As shown in FIG. 2, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) and the continuous variable transmission (CVT300) are respectively installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) and the continuous variable transmission (CVT400) are installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the speed differential state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101); the transmission device (T101) can be optionally         adopted according to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input ends of the continuous variable         transmission (CVT100) and the continuous variable transmission         (CVT300), and the right end output shaft (1012) thereof is         served to drive the input ends of the continuous variable         transmission (CVT200) and the continuous variable transmission         (CVT400);     -   continuous variable transmission (CVT100), (CVT200), (CVT300),         (CVT400): the continuous variable transmission (CVT) is e.g.         structured by continuous variable transmissions having several         structural configurations such as a rubber belt type, metal belt         type, chain type continuous variable transmission, or an         electric continuous variable transmission (ECVT), or a friction         disk type, or a conventional different-shaft type continuous         variable transmission, which includes a continuous variable         transmission capable of individually and automatically varying         speed ratio along with the loading torque, or a continuous         variable transmission capable of individually and passively         varying speed ratio automatically along with the driving         rotation speed at the input end and/or the loading torque, or a         continuous variable transmission utilizing the external         operation interface (MI100) to actively control the speed ratio,         so as to perform all or a part of the following controls,         including: (1) actively and synchronously controlling the speed         ratios of the continuous variable transmission (CVT100) and the         continuous variable transmission (CVT200); (2) actively and         individually controlling the speed ratios of the continuous         variable transmission (CVT100) and the continuous variable         transmission (CVT200) to be different for actively controlling         the proportion of different speed ratios between individual         continuous variable transmissions; (3) actively and         synchronously controlling the speed ratios of the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400); (4) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT300) and the continuous variable transmission (CVT400) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmission; (5) actively and synchronously controlling the         speed ratios of the continuous variable transmission (CVT100),         the continuous variable transmission (CVT200), the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400); (6) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100), the continuous variable transmission (CVT200), the         continuous variable transmission (CVT300) and the continuous         variable transmission (CVT400) to be different for actively         controlling the proportion of different speed ratios between         individual continuous variable transmission.     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100), and/or the         continuous variable transmission (CVT200), and/or the continuous         variable transmission (CVT300), and/or the continuous variable         transmission (CVT400), or for controlling the control unit         (ECU100) so as to further control the operation state of the         rotary kinetic power source (P100), and/or control the operation         speed ratios of the continuous variable transmission (CVT 100),         and/or the continuous variable transmission (CVT200), and/or the         continuous variable transmission (CVT300), and/or the continuous         variable transmission (CVT400);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B 100) and controlled by the external         operation interface (MI100) or operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT100) and/or the continuous variable         transmission (CVT200), and/or the continuous variable         transmission (CVT300) and/or the continuous variable         transmission (CVT400);     -   stabilize device (SDT100), (STD200): constituted by a limited         slip differential, or a dual shaft connecting device composed of         a coupling device having slip damp coupling torque, including a         stabilize device with the dual shaft structure configured         through fluid viscous effect, hydrodynamic damp effect,         mechanical friction effect, electromagnetic vortex effect or         power generation reverse torque effect; wherein two rotating         ends of the stabilize device (SDT100) are respectively connected         between the wheel set (W100) at the rear left side and the wheel         set (W200) at the rear right side of the loading end, and two         rotating ends of the stabilize device (SDT200) are respectively         connected between the wheel set (W300) at the front left side         and the wheel set (W400) at the front right side of the loading         end; during the driving operation, if the load varying at the         individual two sides of the loading end causes the unstable         operation, with the slip damp coupling torque of the stabilize         device (SDT100) and/or the stabilize device (SDT200) installed         between the two opposite wheel sets at the left and right sides,         the operation of the system can be stabilized; the stabilize         device (SDT100) and/or the stabilize device (SDT200) can be         optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 2, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200), (T300), (T400): the output         end of the transmission device (T100) is served to drive the         wheel set (W100) at the rear left side of the loading end, and         the input end thereof is driven by the rotary kinetic power from         the output end of the continuous variable transmission (CVT100);         the output end of the transmission device (T200) is served to         drive the wheel set (W200) at the rear right side, and the input         end thereof is driven by the rotary kinetic power from the         output end of the continuous variable transmission (CVT200); the         output end of the transmission device (T300) is served to drive         the wheel set (W300) at the front left side of the loading end,         and the input end thereof is driven by the rotary kinetic power         from the output end of the continuous variable transmission         (CVT300); the output end of the transmission device (T400) is         served to drive the wheel set (W400) at the front right side,         and the input end thereof is driven by the rotary kinetic power         from the output end of the continuous variable transmission         (CVT400); the transmission devices (T100), (T200), (T300),         (T400) are consisted of mechanical gear sets, or chain sets,         pulley sets or linkage rod sets, and structured as a         transmission device having fixed speed ratio for acceleration or         deceleration or changing direction, or having switchable         multi-step speed ratios, or a manually-operated or automatic or         semi-automatic speed ratio or belt type continuous variable         transmission, or a hydraulic type torque converter; the         transmission devices (T100), (T200) and/or (T300), (T400) can be         optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 2, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200), (CL300), (CL400): the         output end clutch device (CL100) is installed between the output         end of the continuous variable transmission (CVT100) and the         wheel set (W100) for controlling the continuous variable         transmission (CVT100) to output the rotary kinetic power to the         wheel set (W100), the output end clutch device (CL200) is         installed between the output end of the continuous variable         transmission (CVT200) and the wheel set (W200) for controlling         the continuous variable transmission (CVT200) to output the         rotary kinetic power to the wheel set (W200), the output end         clutch device (CL300) is installed between the output end of the         continuous variable transmission (CVT300) and the wheel set         (W300) for controlling the continuous variable transmission         (CVT300) to output the rotary kinetic energy to the wheel set         (W300), and the output end clutch device (CL400) is installed         between the output end of the continuous variable transmission         (CVT400) and the wheel set (W400) for controlling the continuous         variable transmission (CVT400) to output rotation kinetic energy         to the wheel set (W400); the output end clutch devices (CL100),         (CL200), (CL300), (CL400) include being controlled by manual         force or centrifugal force, or controlled through the external         operation interface (MI100) and the control unit (ECU100), and         formed as a clutch device or structure driven by electric force         and/or magnetic force and/or mechanical force and/or air         pressure and/or hydraulic force for performing transmission         engaging or releasing, and having a rotary input end and a         rotary output end; the output end clutch device can further         includes being driven by electric force and/or magnetic force         and/or mechanical force and/or air pressure and/or hydraulic         force for controlling the coupling torque between engaging and         releasing, e.g. an electromagnetic wet type multi-plate clutch         controlling coupling torque through magnetic exciting current,         or a wet type multi-plate clutch driven by mechanical force         and/or air pressure and/or hydraulic force;

The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200), (CL300), (CL400) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); if the operation in differential speed are performed between the wheel set (W100) and the wheel set (W200) and between the wheel set (W300) and the wheel set (W400) at the same time, the interactive differential operation is jointly formed between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101).

FIG. 3 is schematic view illustrating a continuous variable transmission (CVT100) and a continuous variable transmission (CVT300) and a continuous variable transmission (CVT500) being individually installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) of FIG. 1 and the wheel set (W100) at the rear left side, the wheel set (W300) at the front left side and the wheel set (W500) at the middle left side of the loading end, and a continuous variable transmission (CVT200) and a continuous variable transmission (CVT400) and a continuous variable transmission (CVT600) being individually installed between the right end output shaft (1012) thereof and the wheel set (W200) at the rear right side, the wheel set (W400) at the front right side and the wheel set (W600) at the middle right side, according to one embodiment of the present invention.

As shown in FIG. 3, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT500) are respectively installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side, the wheel set (W300) at the front left side and the wheel set (W500) at the middle left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) and the continuous variable transmission (CVT400) and the continuous variable transmission (CVT600) are installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side, the wheel set (W400) at the front right side and the wheel set (W600) at the middle right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the speed differential state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101); the transmission device (T101) can be optionally         adopted according to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input ends of the continuous variable         transmissions (CVT100), (CVT300), (CVT500), and the right end         output shaft (1012) thereof is served to drive the input ends of         the continuous variable transmissions (CVT200), (CVT400),         (CVT600);     -   continuous variable transmission (CVT100), (CVT200), (CVT300),         (CVT400), (CVT500), (CVT600): the continuous variable         transmission (CVT) is e.g. structured by continuous variable         transmissions having several structural configurations such as a         rubber belt type, metal belt type, chain type continuous         variable transmission, or an electric continuous variable         transmission (ECVT), or a friction disk type, or a conventional         different-shaft type continuous variable transmission, which         includes a continuous variable transmission capable of         individually and automatically varying speed ratio along with         the loading torque, or a continuous variable transmission         capable of individually and passively varying speed ratio         automatically along with the driving rotation speed at the input         end and/or the loading torque, or a continuous variable         transmission utilizing the external operation interface (MI100)         to actively control the speed ratio, so as to perform all or a         part of the following controls, including: (1) actively and         synchronously controlling the speed ratios of the continuous         variable transmission (CVT100) and the continuous variable         transmission (CVT200); (2) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100) and the continuous variable transmission (CVT200) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmissions; (3) actively and synchronously controlling the         speed ratios of the continuous variable transmission (CVT300)         and the continuous variable transmission (CVT400); (4) actively         and individually controlling the speed ratios of the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400) to be different for actively controlling         the proportion of different speed ratios between individual         continuous variable transmission; (5) actively and synchronously         controlling the speed ratios of the continuous variable         transmission (CVT500) and the continuous variable transmission         (CVT600); (6) actively and individually controlling the speed         ratios of the continuous variable transmission (CVT500) and the         continuous variable transmission (CVT600) to be different for         actively controlling the proportion of different speed ratios         between individual continuous variable transmission; (7)         actively and synchronously controlling the speed ratios of the         continuous variable transmission (CVT100), the continuous         variable transmission (CVT200), the continuous variable         transmission (CVT300), the continuous variable transmission         (CVT400), the continuous variable transmission (CVT500) and the         continuous variable transmission (CVT600); (8) actively and         individually controlling the speed ratios of the continuous         variable transmission (CVT100), the continuous variable         transmission (CVT200), the continuous variable transmission         (CVT300), the continuous variable transmission (CVT400), the         continuous variable transmission (CVT500) and the continuous         variable transmission (CVT600) to be different for actively         controlling the proportion of different speed ratios between         individual continuous variable transmissions;     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100), and/or the         continuous variable transmission (CVT200), and/or the continuous         variable transmission (CVT300), and/or the continuous variable         transmission (CVT400), and/or the continuous variable         transmission (CVT500), and/or the continuous variable         transmission (CVT600), or for controlling the control unit         (ECU100) so as to further control the operation state of the         rotary kinetic power source (P100), and/or control the operation         speed ratios of the continuous variable transmission (CVT100),         and/or the continuous variable transmission (CVT200), and/or the         continuous variable transmission (CVT300), and/or the continuous         variable transmission (CVT400), and/or the continuous variable         transmission (CVT500), and/or the continuous variable         transmission (CVT600);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B 100) and controlled by the external         operation interface (MI100) or operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT100) and/or the continuous variable         transmission (CVT200), and/or the continuous variable         transmission (CVT300), and/or the continuous variable         transmission (CVT400), and/or the continuous variable         transmission (CVT500) and/or the continuous variable         transmission (CVT600);     -   stabilize device (SDT100), (STD200), (STD300): constituted by a         limited slip differential, or a dual shaft connecting device         composed of a coupling device having slip damp coupling torque,         including a stabilize device with the dual shaft structure         configured through fluid viscous effect, hydrodynamic damp         effect, mechanical friction effect, electromagnetic vortex         effect or power generation reverse torque effect; wherein two         rotating ends of the stabilize device (SDT100) are respectively         connected between the wheel set (W100) at the rear left side and         the wheel set (W200) at the rear right side of the loading end,         two rotating ends of the stabilize device (SDT200) are         respectively connected between the wheel set (W300) at the front         left side and the wheel set (W400) at the front right side of         the loading end, and two rotating ends of the stabilize device         (SDT300) are respectively connected between the wheel set (W500)         at the middle left side and the wheel set (W600) at the middle         right side of the loading end; during the driving operation, if         the load varying at the individual two sides of the loading end         causes the unstable operation, with the slip damp coupling         torque of the stabilize device (SDT100) and/or the stabilize         device (SDT200) and/or the stabilize device (SDT300) installed         between the two opposite wheel sets at the left and right sides,         the operation of the system can be stabilized; the stabilize         device (SDT100) and/or the stabilize device (SDT200) and/or the         stabilize device (SDT300) can be optionally installed according         to actual needs;

According to the embodiment disclosed in FIG. 3, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200), (T300), (T400), (T500),         (T600): the output end of the transmission device (T100) is         served to drive the wheel set (W100) at the rear left side of         the loading end, and the input end thereof is driven by the         rotary kinetic power from the output end of the continuous         variable transmission (CVT100); the output end of the         transmission device (T200) is served to drive the wheel set         (W200) at the rear right side, and the input end thereof is         driven by the rotary kinetic power from the output end of the         continuous variable transmission (CVT200); the output end of         (T300) is served to drive the wheel set (W300) at the front left         side of the loading end, and the input end thereof is driven by         the rotary kinetic power from the output end of the continuous         variable transmission (CVT300); the output end of the         transmission device (T400) is served to drive the wheel set         (W400) at the front right side, and the input end thereof is         driven by the rotary kinetic power from the output end of the         continuous variable transmission (CVT400); the output end of the         transmission device (T500) is served to drive the wheel set         (W500) at the middle left side of the loading end, and the input         end thereof is driven by the rotary kinetic power from the         output end of the continuous variable transmission (CVT500); the         output end of the transmission device (T600) is served to drive         the wheel set (W600) at the middle right side of the loading         end, and the input end thereof is driven by the rotary kinetic         power from the output end of the continuous variable         transmission (CVT600); the transmission devices (T100), (T200),         (T300), (T400), (T500), (T600) are consisted of mechanical gear         sets, or chain sets, pulley sets or linkage rod sets, and         structured as a transmission device having fixed speed ratio for         acceleration or deceleration or changing direction or having         switchable multi-step speed ratios, or a manually-operated or         automatic or semi-automatic speed ratio or belt type continuous         variable transmission, or a hydraulic type torque converter; the         transmission devices (T100), (T200) and/or (T300), (T400),         (T500), (T600) can be optionally installed according to actual         needs;

According to the embodiment disclosed in FIG. 3, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200), (CL300), (CL400),         (CL500), (CL600): the output end clutch device (CL100) is         installed between the output end of the continuous variable         transmission (CVT100) and the wheel set (W100) for controlling         the continuous variable transmission (CVT100) to output the         rotary kinetic power to the wheel set (W100), the output end         clutch device (CL200) is installed between the output end of the         continuous variable transmission (CVT200) and the wheel set         (W200) for controlling the continuous variable transmission         (CVT200) to output the rotary kinetic power to the wheel set         (W200), the output end clutch device (CL300) is installed         between the output end of the continuous variable transmission         (CVT300) and the wheel set (W300) for controlling the continuous         variable transmission (CVT300) to output the rotary kinetic         energy to the wheel set (W300), the output end clutch device         (CL400) is installed between the output end of the continuous         variable transmission (CVT400) and the wheel set (W400) for         controlling the continuous variable transmission (CVT400) to         output the rotary kinetic energy to the wheel set (W400), the         output end clutch device (CL500) is installed between the output         end of the continuous variable transmission (CVT500) and the         wheel set (W500) for controlling the continuous variable         transmission (CVT500) to output the rotary kinetic power to the         wheel set (W500), and the output end clutch device (CL600) is         installed between the output end of the continuous variable         transmission (CVT600) and the wheel set (W600) for controlling         the continuous variable transmission (CVT600) to output the         rotary kinetic power to the wheel set (W600); the output end         clutch devices (CL100), (CL200), (CL300), (CL400), (CL500),         (CL600) include being controlled by manual force or centrifugal         force, or controlled through the external operation interface         (MI100) and the control unit (ECU100), and formed as a clutch         device or structure driven by electric force and/or magnetic         force and/or mechanical force and/or air pressure and/or         hydraulic force for performing transmission engaging or         releasing, and having a rotary input end and a rotary output         end; the output end clutch device can further includes being         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for controlling         the coupling torque between engaging and releasing, e.g. an         electromagnetic wet type multi-plate clutch controlling coupling         torque through magnetic exciting current, or a wet type         multi-plate clutch driven by mechanical force and/or air         pressure and/or hydraulic force;

The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400), (CL500), (CL600) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); accordingly, when the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) are individually adjusted along with the load varying of the wheel set (W500) and the wheel set (W600) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT500) and the input end of the continuous variable transmission (CVT600); if the operation in differential speed are performed between the wheel set (W100) and the wheel set (W200) and/or between the wheel set (W300) and the wheel set (W400) and/or between the wheel set (W500) and the wheel set (W600) at the same time, the interactive differential operation is jointly formed between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) and/or between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) and/or between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), and between the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101).

According to the multi-CVT drive system having epicyclic gear set illustrated in previous embodiment accompanied with FIG. 1, FIG. 2 and FIG. 3, when more wheel sets sharing the same epicyclic gear set and having individual continuous variable transmission at the loading end, the structured system can be formed with the same means disclosed above, wherein the limited slip differential or the stabilize device composed of the dual shaft connecting device having slip coupling torque installed at opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets, or the transmission device or clutch device installed between the individual CVT to the wheel set can be all or partially installed or none of the above is installed.

FIG. 4 is a schematic view illustrating FIG. 2 being further installed with a first epicyclic gear seat (EG101) and a second epicyclic gear set (EG102) driven by the rotary kinetic power of the rotary kinetic power source (P100), and a continuous variable transmission (CVT100) being installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end, a continuous variable transmission (CVT200) being installed between the right end output shaft (1012) and the wheel (W200) at the rear right side, and a continuous variable transmission (CVT300) being installed between the left end output shaft (1021) of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side, and a continuous variable transmission (CVT400) being installed between the right end output shaft (1022) and the wheel set (W400) at the front right side, according to one embodiment of the present invention.

As shown in FIG. 4, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is individually installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) is individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end at the right side of the common load body (L100); the rotary output end of the rotary kinetic power source (P100) is directly or through the transmission device (T101) to drive the second epicyclic gear set (EG102), and the continuous variable transmission (CVT300) is individually installed between the left end output shaft (1021) of the two output ends of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT400) is individually installed between the right end output shaft (1022) and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the differential speed state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101) and the second epicyclic gear set (EG102); the         transmission device (T101) can be optionally adopted according         to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT100), and the right end output shaft (1012)         thereof is served to drive the input end of the continuous         variable transmission (CVT200);     -   second epicyclic gear set (EG102): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by the engine, or driven by the engine through         the transmission device (T101); the left end output shaft (1021)         of the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT300), and the right end output shaft (1022) is         served to drive the input end of the continuous variable         transmission (CVT400);     -   continuous variable transmission (CVT100), (CVT200), (CVT300),         (CVT400): the continuous variable transmission (CVT) is e.g.         structured by continuous variable transmissions having several         structural configurations such as a rubber belt type, metal belt         type, chain type continuous variable transmission, or an         electric continuous variable transmission (ECVT), or a friction         disk type, or a conventional different-shaft type continuous         variable transmission, which includes a continuous variable         transmission capable of individually and automatically varying         speed ratio along with the loading torque, or a continuous         variable transmission capable of individually and passively         varying speed ratio automatically along with the driving         rotation speed at the input end and/or the loading torque, or a         continuous variable transmission utilizing the external         operation interface (MI100) to actively control the speed ratio,         so as to perform all or a part of the following controls,         including: (1) actively and synchronously controlling the speed         ratios of the continuous variable transmission (CVT100) and the         continuous variable transmission (CVT200); (2) actively and         individually controlling the speed ratios of the continuous         variable transmission (CVT100) and the continuous variable         transmission (CVT200) to be different for actively controlling         the proportion of different speed ratios between individual         continuous variable transmissions; (3) actively and         synchronously controlling the speed ratios of the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400); (4) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT300) and the continuous variable transmission (CVT400) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmission; (5) actively and synchronously controlling the         speed ratios of the continuous variable transmission (CVT100),         the continuous variable transmission (CVT200), the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400); (6) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100), the continuous variable transmission (CVT200), the         continuous variable transmission (CVT300) and the continuous         variable transmission (CVT400) to be different for actively         controlling the proportion of different speed ratios between         individual continuous variable transmission;     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100), and/or the         continuous variable transmission (CVT200), and/or the continuous         variable transmission (CVT300), and/or the continuous variable         transmission (CVT400), or for controlling the control unit         (ECU100) so as to further control the operation state of the         rotary kinetic power source (P100), and/or control the operation         speed ratios of the continuous variable transmission (CVT 100),         and/or the continuous variable transmission (CVT200), and/or the         continuous variable transmission (CVT300), and/or the continuous         variable transmission (CVT400);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B100) and controlled by the external         operation interface (MI100) or operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT 100) and/or the continuous variable         transmission (CVT200), and/or the continuous variable         transmission (CVT300), and/or the continuous variable         transmission (CVT400);     -   stabilize device (SDT100), (STD200): constituted by a limited         slip differential, or a dual shaft connecting device composed of         a coupling device having slip damp coupling torque, including a         stabilize device with the dual shaft structure configured         through fluid viscous effect, hydrodynamic damp effect,         mechanical friction effect, electromagnetic vortex effect or         power generation reverse torque effect; wherein two rotating         ends of the stabilize device (SDT100) are respectively connected         between the wheel set (W100) at the rear left side and the wheel         set (W200) at the rear right side of the loading end, and two         rotating ends of the stabilize device (SDT200) are respectively         connected between the wheel set (W300) at the front left side         and the wheel set (W400) at the front right side of the loading         end; during the driving operation, if the load varying at the         individual two sides of the loading end causes the unstable         operation, with the slip damp coupling torque of the stabilize         device (SDT100) and/or the stabilize device (SDT200) installed         between the two opposite wheel sets at the left and right sides,         the operation of the system can be stabilized; the stabilize         device (SDT100) and/or the stabilize device (SDT200) can be         optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 4, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200), (T300), (T400): the output         end of the transmission device (T100) is served to drive the         wheel set (W100) at the rear left side of the loading end, and         the input end thereof is driven by the rotary kinetic power from         the output end of the continuous variable transmission (CVT100);         the output end of the transmission device (T200) is served to         drive the wheel set (W200) at the rear right side, and the input         end thereof is driven by the rotary kinetic power from the         output end of the continuous variable transmission (CVT200); the         output end of the transmission device (T300) is served to drive         the wheel set (W300) at the front left side of the loading end,         and the input end thereof is driven by the rotary kinetic power         from the output end of the continuous variable transmission         (CVT300); the output end of the transmission device (T400) is         served to drive the wheel set (W400) at the front right side,         and the input end thereof is driven by the rotary kinetic power         from the output end of the continuous variable transmission         (CVT400); the transmission devices (T100), (T200), (T300),         (T400) are consisted of mechanical gear sets, or chain sets,         pulley sets or linkage rod sets, and structured as a         transmission device having fixed speed ratio for acceleration or         deceleration or changing direction or having switchable         multi-step speed ratios, or a manually-operated or automatic or         semi-automatic speed ratio or belt type continuous variable         transmission, or a hydraulic type torque converter; the         transmission devices (T100), (T200) and/or (T300), (T400) can be         optionally installed according to actual needs;

According to the embodiment disclosed in FIG. 4, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200), (CL300), (CL400): the         output end clutch device (CL100) is installed between the output         end of the continuous variable transmission (CVT100) and the         wheel set (W100) for controlling the continuous variable         transmission (CVT100) to output the rotary kinetic power to the         wheel set (W100), the output end clutch device (CL200) is         installed between the output end of the continuous variable         transmission (CVT200) and the wheel set (W200) for controlling         the continuous variable transmission (CVT200) to output the         rotary kinetic power to the wheel set (W200), the output end         clutch device (CL300) is installed between the output end of the         continuous variable transmission (CVT300) and the wheel set         (W300) for controlling the continuous variable transmission         (CVT300) to output the rotary kinetic energy to the wheel set         (W300), and the output end clutch device (CL400) is installed         between the output end of the continuous variable transmission         (CVT400) and the wheel set (W400) for controlling the continuous         variable transmission (CVT400) to output the rotary kinetic         energy to the wheel set (W400); the output end clutch devices         (CL100), (CL200), (CL300), (CL400) include being controlled by         manual force or centrifugal force, or controlled through the         external operation interface (MI100) and the control unit         (ECU100), and formed as a clutch device or structure driven by         electric force and/or magnetic force and/or mechanical force         and/or pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the output end clutch device can         further includes being driven by electric force and/or magnetic         force and/or mechanical force and/or air pressure and/or         hydraulic force for controlling the coupling torque between         engaging and releasing, e.g. an electromagnetic wet type         multi-plate clutch controlling coupling torque through magnetic         exciting current, or a wet type multi-plate clutch driven by         mechanical force and/or air pressure and/or hydraulic force;

The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200), (CL300), (CL400) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1021) and the right end output shaft (1022) of the two output ends of the second epicyclic gear set (EG102) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400).

FIG. 5 is a schematic view illustrating FIG. 3 being further installed with a first epicyclic gear seat (EG101), a second epicyclic gear set (EG102) and a third epicyclic gear set (EG103) driven by the rotary kinetic power of the rotary kinetic power source (P100), and a continuous variable transmission (CVT100) being installed between the left end output shaft (1011) of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end, a continuous variable transmission (CVT200) being installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side, a continuous variable transmission (CVT300) being installed between the left end output shaft (1021) of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side, a continuous variable transmission (CVT400) being installed between the right end output shaft (1022) and the wheel set (W400) at the front right side, a continuous variable transmission (CVT500) being installed between the left end output shaft (1031) of the third epicyclic gear set (EG103) and the wheel set (W500) at the middle left side, and a continuous variable transmission (CVT600) being installed between the right end output shaft (1032) and the wheel set (W600) at the middle right side, according to one embodiment of the present invention.

As shown in FIG. 5, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is individually installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) is individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end at the right side of the common load body (L100); and utilizes the rotary output end of the rotary kinetic power source (P100) to directly or through the transmission device (T101) to drive the second epicyclic gear set (EG102), and the continuous variable transmission (CVT300) is individually installed between the left end output shaft (1021) of the two output ends of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT400) is individually installed between the right end output shaft (1022) and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100); and utilizes the rotary output end of the rotary kinetic power source (P100) to directly or through the transmission device (T101) to drive the third epicyclic gear set (EG103), and the continuous variable transmission (CVT500) is individually installed between the left end output shaft (1031) of the two output ends of the third epicyclic gear set (EG103) and the wheel set (W500) at the middle left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT600) is individually installed between the right end output shaft (1032) and the wheel set (W600) at the middle right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the differential speed state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101) and the second epicyclic gear set (EG102) and the         third epicyclic gear set (EG103); the transmission device (T101)         can be optionally adopted according to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmissions (CVT100), and the right end output shaft (1012)         thereof is served to drive the input end of the continuous         variable transmission (CVT200);     -   second epicyclic gear set (EG102): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by the engine, or driven by the engine through         the transmission device (T101); the left end output shaft (1021)         of the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT300), and the right end output shaft (1022)         thereof is served to drive the input end of the continuous         variable transmission (CVT400);     -   third epicyclic gear set (EG103): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by the engine, or driven by the engine through         the transmission device (T101); the left end output shaft (1031)         of the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT500), and the right end output shaft (1032)         thereof is served to drive the input end of the continuous         variable transmission (CVT600);     -   continuous variable transmission (CVT100), (CVT200), (CVT300),         (CVT400), (CVT500), (CVT600): the continuous variable         transmission (CVT) is e.g. structured by continuous variable         transmissions having several structural configurations such as a         rubber belt type, metal belt type, chain type continuous         variable transmission, or an electric continuous variable         transmission (ECVT), or a friction disk type, or a conventional         different-shaft type continuous variable transmission, which         includes a continuous variable transmission capable of         individually and automatically varying speed ratio along with         the loading torque, or a continuous variable transmission         capable of individually and passively varying speed ratio         automatically along with the driving rotation speed at the input         end and/or the loading torque, or a continuous variable         transmission utilizing the external operation interface (MI100)         to actively control the speed ratio, so as to perform all or a         part of the following controls, including: (1) actively and         synchronously controlling the speed ratios of the continuous         variable transmission (CVT100) and the continuous variable         transmission (CVT200); (2) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100) and the continuous variable transmission (CVT200) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmissions; (3) actively and synchronously controlling the         speed ratios of the continuous variable transmission (CVT300)         and the continuous variable transmission (CVT400); (4) actively         and individually controlling the speed ratios of the continuous         variable transmission (CVT300) and the continuous variable         transmission (CVT400) to be different for actively controlling         the proportion of different speed ratios between individual         continuous variable transmission; (5) actively and synchronously         controlling the speed ratios of the continuous variable         transmission (CVT500) and the continuous variable transmission         (CVT600); (6) actively and individually controlling the speed         ratios of the continuous variable transmission (CVT500) and the         continuous variable transmission (CVT600) to be different for         actively controlling the proportion of different speed ratios         between individual continuous variable transmission; (7)         actively and synchronously controlling the speed ratios of the         continuous variable transmission (CVT100), the continuous         variable transmission (CVT200), the continuous variable         transmission (CVT300), the continuous variable transmission         (CVT400), the continuous variable transmission (CVT500) and the         continuous variable transmission (CVT600); (8) actively and         individually controlling the speed ratios of the continuous         variable transmission (CVT100), the continuous variable         transmission (CVT200), the continuous variable transmission         (CVT300), the continuous variable transmission (CVT400), the         continuous variable transmission (CVT500) and the continuous         variable transmission (CVT600) to be different for actively         controlling the proportion of different speed ratios between         individual continuous variable transmissions;     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100), and/or the         continuous variable transmission (CVT200), and/or the continuous         variable transmission (CVT300), and/or the continuous variable         transmission (CVT400), and/or the continuous variable         transmission (CVT500), and/or the continuous variable         transmission (CVT600), or for controlling the control unit         (ECU100) so as to further control the operation state of the         rotary kinetic power source (P100), and/or control the operation         speed ratios of the continuous variable transmission (CVT100),         and/or the continuous variable transmission (CVT200), and/or the         continuous variable transmission (CVT300), and/or the continuous         variable transmission (CVT400), and/or the continuous variable         transmission (CVT500), and/or the continuous variable         transmission (CVT600);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B 100) and controlled by the external         operation interface (MI100) or operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT100) and/or the continuous variable         transmission (CVT200), and/or the continuous variable         transmission (CVT300), and/or the continuous variable         transmission (CVT400), and/or the continuous variable         transmission (CVT500) and/or the continuous variable         transmission (CVT600);     -   stabilize device (SDT100), (STD200), (STD300): constituted by a         limited slip differential, or a dual shaft connecting device         composed of a coupling device having slip damp coupling torque,         including a stabilize device with the dual shaft structure         configured through fluid viscous effect, hydrodynamic damp         effect, mechanical friction effect, electromagnetic vortex         effect or power generation reverse torque effect; wherein two         rotating ends of the stabilize device (SDT100) are respectively         connected between the wheel set (W100) at the rear left side and         the wheel set (W200) at the rear right side of the loading end,         two rotating ends of the stabilize device (SDT200) are         respectively connected between the wheel set (W300) at the front         left side and the wheel set (W400) at the front right side of         the loading end, and two rotating ends of the stabilize device         (SDT300) are respectively connected between the wheel set (W500)         at the middle left side and the wheel set (W600) at the middle         right side of the loading end; during the driving operation, if         the load varying at the individual two sides of the loading end         causes the unstable operation, with the slip damp coupling         torque of the stabilize device (SDT100) and/or the stabilize         device (SDT200) and/or the stabilize device (SDT300) installed         between the two opposite wheel sets at the left and right sides,         the operation of the system can be stabilized; the stabilize         device (SDT100) and/or the stabilize device (SDT200) and/or the         stabilize device (SDT300) can be optionally installed according         to actual needs;

According to the embodiment disclosed in FIG. 5, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200), (T300), (T400), (T500),         (T600): the output end of the transmission device (T100) is         served to drive the wheel set (W100) at the rear left side of         the loading end, and the input end thereof is driven by the         rotary kinetic power from the output end of the continuous         variable transmission (CVT100); the output end of the         transmission device (T200) is served to drive the wheel set         (W200) at the rear right side, and the input end thereof is         driven by the rotary kinetic power from the output end of the         continuous variable transmission (CVT200); the output end of the         transmission device (T300) is served to drive the wheel set         (W300) at the front left side of the loading end, and the input         end thereof is driven by the rotary kinetic power from the         output end of the continuous variable transmission (CVT300); the         output end of the transmission device (T400) is served to drive         the wheel set (W400) at the front right side, and the input end         thereof is driven by the rotary kinetic power from the output         end of the continuous variable transmission (CVT400); the output         end of the transmission device (T500) is served to drive the         wheel set (W500) at the middle left side of the loading end, and         the input end thereof is driven by the rotary kinetic power from         the output end of the continuous variable transmission (CVT500);         the output end of the transmission device (T600) is served to         drive the wheel set (W600) at the middle right side of the         loading end, and the input end is driven by the rotary kinetic         power from the output end of the continuous variable         transmission (CVT600); the transmission devices (T100), (T200),         (T300), (T400), (T500), (T600) are consisted of mechanical gear         sets, or chain sets, pulley sets or linkage rod sets, and         structured as a transmission device having fixed speed ratio for         acceleration or deceleration or changing direction, or a         manually-operated or automatic or semi-automatic speed ratio or         belt type continuous variable transmission, or a hydraulic type         torque converter; the transmission devices (T100), (T200) and/or         (T300), (T400), (T500), (T600) can be optionally installed         according to actual needs;

According to the embodiment disclosed in FIG. 5, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200), (CL300), (CL400),         (CL500), (CL600): the output end clutch device (CL100) is         installed between the output end of the continuous variable         transmission (CVT100) and the wheel set (W100) for controlling         the continuous variable transmission (CVT100) to output the         rotary kinetic power to the wheel set (W100), the output end         clutch device (CL200) is installed between the output end of the         continuous variable transmission (CVT200) and the wheel set         (W200) for controlling the continuous variable transmission         (CVT200) to output the rotary kinetic power to the wheel set         (W200), the output end clutch device (CL300) is installed         between the output end of the continuous variable transmission         (CVT300) and the wheel set (W300) for controlling the continuous         variable transmission (CVT300) to output the rotary kinetic         energy to the wheel set (W300), the output end clutch device         (CL400) is installed between the output end of the continuous         variable transmission (CVT400) and the wheel set (W400) for         controlling the continuous variable transmission (CVT400) to         output the rotary kinetic energy to the wheel set (W400), the         output end clutch device (CL500) is installed between the output         end of the continuous variable transmission (CVT500) and the         wheel set (W500) for controlling the continuous variable         transmission (CVT500) to output the rotary kinetic power to the         wheel set (W500), and the output end clutch device (CL600) is         installed between the output end of the continuous variable         transmission (CVT600) and the wheel set (W600) for controlling         the continuous variable transmission (CVT600) to output the         rotary kinetic power to the wheel set (W600); the output end         clutch devices (CL100), (CL200), (CL300), (CL400), (CL500),         (CL600) include being controlled by manual force or centrifugal         force, or controlled through the external operation interface         (MI100) and the control unit (ECU100), and formed as a clutch         device or structure driven by electric force and/or magnetic         force and/or mechanical force and/or pressure and/or hydraulic         force for performing transmission engaging or releasing, and         having a rotary input end and a rotary output end; the output         end clutch device can further includes being driven by electric         force and/or magnetic force and/or mechanical force and/or air         pressure and/or hydraulic force for controlling the coupling         torque between engaging and releasing, e.g. an electromagnetic         wet type multi-plate clutch controlling coupling torque through         magnetic exciting current, or a wet type multi-plate clutch         driven by mechanical force and/or air pressure and/or hydraulic         force;

The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400), (CL500), (CL600) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1021) and the right end output shaft (1022) of the two output ends of the second epicyclic gear set (EG102) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); accordingly, when the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) are individually adjusted along with the load varying of the wheel set (W500) and the wheel set (W600) of the loading end, and the left end output shaft (1031) and the right end output shaft (1032) of the two output ends of the third epicyclic gear set (EG103) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT500) and the input end of the continuous variable transmission (CVT600).

What shall be explained is that FIG. 4 and FIG. 5 are examples of the multi-CVT drive system having epicyclic gear set, when being applied in a loading end wheel set having more individual epicyclic gear sets and continuous variable transmissions, the structured system can be formed with the same means disclosed above, wherein the limited slip differential or the stabilize device composed of the dual shaft connecting device having slip coupling torque installed at opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets, or the transmission device, or the clutch device installed between the individual CVT to the wheel set can be all or partially installed or none of the above is installed.

According to the multi-CVT drive system having epicyclic gear set, a direction changing signal sensor (S 100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), thereby enhancing the performance of the drive for changing direction; taken the embodiment disclosed in FIG. 1 installed with the direction changing signal sensor (S100) as an example, and the embodiments disclosed in FIG. 2, FIG. 3, FIG. 4 and FIG. 5 can adopt the same;

FIG. 6 is a schematic view illustrating FIG. 1 being installed with a direction changing signal sensor (S100) to send a signal to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), according to one embodiment of the present invention.

As shown in FIG. 6, the present invention utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the left side wheel set (W100) of the loading end of the common load body (L100), and the continuous variable transmission (CVT200) is installed between the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) and the right side wheel set (W200), thereby forming the drive system capable of being operated in the differential speed and variable speed state, which mainly consists of:

-   -   rotary kinetic power source (P100): constituted by a power         source outputting kinetic power through rotation, e.g. an         internal combustion engine, external combustion engine, spring         power source, hydraulic power source, pressure power source,         flywheel power source or manual force, or animal force, wind         power source, and/or composed of a AC or DC, brush or brushless,         synchronous or non-synchronous, internal rotating or external         rotating type rotary motor installed with relative control         devices and electrically driven by power supply and/or storage         device; the output end thereof includes outputting directly or         outputting through a clutch device;     -   input end clutch device (CL101): installed between the output         end of the rotary kinetic power source (P100) and the input end         of the first transmission device (T101), capable of controlling         the rotary kinetic power source (P100) to control the         transmission or termination of the rotary kinetic power to the         first transmission device (T101); the input end clutch device         (CL101) includes being controlled by manual force or centrifugal         force, or being controlled through the external operation         interface (MI100), and formed as a clutch device or structure         driven by electric force and/or magnetic force and/or mechanical         force and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the input end clutch device (CL101)         can be optionally installed according to actual needs;     -   transmission device (T101): constituted by a transmission device         having fixed speed ratio or variable speed ratio or continuous         variable speed and consisted of mechanical gear sets, or chain         sets or pulley sets or linkage rod sets; installed between the         rotary kinetic power source (P100) and the first epicyclic gear         set (EG101); the transmission device (T101) can be optionally         adopted according to actual needs;     -   first epicyclic gear set (EG101): constituted by an epicyclic         gear set having an input shaft and two output shafts capable of         differentially operating, directly driven by the rotary kinetic         power provided by an engine, or driven by the engine through the         transmission device (T101); the left end output shaft (1011) of         the two output shafts capable of differentially operating is         served to drive the input end of the continuous variable         transmission (CVT100), the right end output shaft (1012) is         served to drive the input end of the continuous variable         transmission (CVT200);     -   continuous variable transmission (CVT100), (CVT200): the         continuous variable transmission (CVT) is e.g. structured by         continuous variable transmissions having several structural         configurations such as a rubber belt type, metal belt type,         chain type continuous variable transmission, or an electric         continuous variable transmission (ECVT), or a friction disk         type, or a conventional different-shaft type continuous variable         transmission, which includes a continuous variable transmission         capable of individually and automatically varying speed ratio         along with the loading torque, or a continuous variable         transmission capable of individually and passively varying speed         ratio automatically along with the driving rotation speed at the         input end and/or the loading torque, or a continuous variable         transmission utilizing the external operation interface (MI100)         to actively control the speed ratio, so as to perform all or a         part of the following controls, including: (1) actively and         synchronously controlling the speed ratios of the continuous         variable transmission (CVT100) and the continuous variable         transmission (CVT200); (2) actively and individually controlling         the speed ratios of the continuous variable transmission         (CVT100) and the continuous variable transmission (CVT200) to be         different for actively controlling the proportion of different         speed ratios between individual continuous variable         transmissions;     -   external operation interface (MI100): constituted by a         mechanical operation device control by manual force or system,         and structured by a linear analog type or digital type or hybrid         type electromechanical device and/or solid state electric         circuit, and provided for directly controlling the rotary         kinetic power source (P100), and/or the operation speed ratios         of the continuous variable transmission (CVT100) and/or the         continuous variable transmission (CVT200), or for controlling         the control unit (ECU100) so as to further control the operation         state of the rotary kinetic power source (P100), and/or control         the operation speed ratios of the continuous variable         transmission (CVT100) and/or the continuous variable         transmission (CVT200);     -   control unit (ECU100): constituted by electromechanical devices         and/or electric circuit components and/or power semiconductors         and/or microprocessors and software, for being connected to an         electric power source (B 100) and controlled by the external         operation interface (MI100) or controlled by the direction         changing signal sensor (S100), operated through the signal of         controlling system operation state, for controlling the         operation state of the rotary kinetic power source (P100),         and/or controlling the operation speed ratios of the continuous         variable transmission (CVT100) and/or the continuous variable         transmission (CVT200);     -   direction changing signal sensor (S100): defined as one or more         than one physical sensors, for detecting signals relative to         direction changing including one or more than one of following         signals: a signal of direction changing degree from the steering         machine, a signal of inclined angle of vehicle body, a signal of         vehicle idling, a signal of upward/downward slope, a signal of         acceleration or deceleration, and together with the signal of         the external operation interface (MI100) to be transmitted to         the control unit (ECU100);     -   stabilize device (SDT100): constituted by a limited slip         differential, or a dual shaft connecting device composed of a         coupling device having slip damp coupling torque, including a         stabilize device with the dual shaft structure configured         through fluid viscous effect, hydrodynamic damp effect,         mechanical friction effect, electromagnetic vortex effect or         power generation reverse torque effect; wherein two rotating         ends thereof are respectively connected between the left side         wheel set (W100) and the right side wheel set (W200) of the         loading end; during the driving operation, if the load varying         at the individual two sides of the loading end causes the         unstable operation, with the slip damp coupling torque of the         stabilize device (SDT100) installed between the wheel sets at         the left and right sides, the operation of the system can be         stabilized; the stabilize device (SDT100) can be optionally         installed according to actual needs;

According to the embodiment disclosed in FIG. 6, the input end or the output end of the continuous variable transmission or the input end of the wheel set can be further installed with a transmission device, wherein:

-   -   transmission device (T100), (T200): the output end of the         transmission device (T100) is served to drive the left side         wheel set (W100) of the loading end, and the input end thereof         is driven by the rotary kinetic power from the output end of the         continuous variable transmission (CVT100); the output end of the         transmission device (T200) is served to drive the right side         wheel set (W200), and the input end thereof is driven by the         rotary kinetic power from the output end of the continuous         variable transmission (CVT200); the transmission device (T100)         and the transmission device (T200) are consisted of mechanical         gear sets, or chain sets, pulley sets or linkage rod sets, and         structured as a transmission device having fixed speed ratio for         acceleration or deceleration or changing direction or having         switchable multi-step speed ratios, or a manually-operated or         automatic or semi-automatic speed ratio or belt type continuous         variable transmission, or a hydraulic type torque converter; the         transmission devices (T100), (T200) can be optionally installed         according to actual needs;

According to the embodiment disclosed in FIG. 6, between the output end of the continuous variable transmission individually installed on individual wheel set and the loading end, a clutch device can be further installed between the output end of the continuous variable transmission to the transmission chain of the input end of the wheel set used for distal driving, wherein:

-   -   output end clutch device (CL100), (CL200): the output end clutch         device (CL 100) is installed between the output end of the         continuous variable transmission (CVT100) and the wheel set         (W100) for controlling the continuous variable transmission         (CVT100) to output the rotary kinetic power to the wheel set         (W100), and the output end clutch device (CL200) is installed         between the output end of the continuous variable transmission         (CVT200) and the wheel set (W200) for controlling the continuous         variable transmission (CVT200) to output the rotary kinetic         power to the wheel set (W200); the output end clutch device         (CL100) and the output end clutch device (CL200) include being         controlled by manual force or centrifugal force, or controlled         through the external operation interface (MI100) and the control         unit (ECU100), and formed as a clutch device or structure driven         by electric force and/or magnetic force and/or mechanical force         and/or air pressure and/or hydraulic force for performing         transmission engaging or releasing, and having a rotary input         end and a rotary output end; the output end clutch device can         further includes being driven by electric force and/or magnetic         force and/or mechanical force and/or air pressure and/or         hydraulic force for controlling the coupling torque between         engaging and releasing, e.g. an electromagnetic wet type         multi-plate clutch controlling coupling torque through magnetic         exciting current, or a wet type multi-plate clutch driven by         mechanical force and/or air pressure and/or hydraulic force;

The structure of the output end clutch device (CL100), (CL200) includes:

-   -   (1) a clutch device or structure driven by electric force and/or         magnetic force and/or mechanical force and/or air pressure         and/or hydraulic force for performing transmission engaging or         releasing;     -   (2) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         linearly controlling the continuous coupling torque between         transmission engaging and releasing;     -   (3) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having torque         limited coupling function which is smaller than the engaging         torque, after being released;     -   (4) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is increased while the rotation differential is increased,         after being released;     -   (5) driven by electric force and/or magnetic force and/or         mechanical force and/or air pressure and/or hydraulic force for         performing transmission engaging or releasing, and having a         linear damp function which is smaller than the engaging torque         and is reduced while the rotation differential is increased,         after being released;     -   (6) (1) to (5) including a radial clutch device;     -   (7) (1) to (5) including an axial clutch device;

The output end clutch device (CL100), (CL200) can be optionally installed according to actual needs;

-   -   common load body (L100) can be provided with one or more than         one non-powered wheels according to actual needs;

With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the left side wheel set (W100) and the right side wheel set (W200) of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200).

According to the multi-CVT drive system having epicyclic gear set, the drive system can be further configured as a co-structure;

FIG. 7 is a block diagram illustrating the structure in which the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), the output end clutch devices (CL100), (CL200), and transmission devices (T100), (T200) being combined at two output sides of the first epicyclic gear set (EG101), according to one embodiment of the present invention;

As shown in FIG. 7, which shows the co-structure in which the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), the output end clutch devices (CL100), (CL200), the transmission devices (T100), (T200) are combined at the two output ends of the first epicyclic gear set (EG101).

FIG. 8 is a schematic view illustrating FIG. 7 being installed with a direction changing signal sensor (S100) to send a signal to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), according to one preferred embodiment of the present invention.

As shown in FIG. 8, the signal of the direction changing signal sensor (S100) is sent to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), wherein:

-   -   direction changing signal sensor (S100): defined as one or more         than one physical sensors, for detecting signals relative to         direction changing including one or more than one of following         signals: a signal of direction changing degree from the steering         machine, a signal of inclined angle of vehicle body, a signal of         vehicle idling, a signal of upward/downward slope, a signal of         acceleration or deceleration, and together with the signal of         the external operation interface (MI100) to be transmitted to         the control unit (ECU100);

What shall be explained is that FIG. 1 to FIG. 7 and FIG. 8 are examples of the multi-CVT drive system having epicyclic gear set, when being applied to adopt more loading end wheel sets, the same means disclose above can be applied.

According to the multi-CVT drive system having epicyclic gear set, an output end transmission device composed of a stepped or continuous variable transmission having fixed speed ratio for acceleration or deceleration or direction changing can be further installed between the output end of the first transmission device (T101) and the individual loading end wheel set; the mentioned output end transmission device is composed of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or direction changing, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter.

According to the multi-CVT drive system having epicyclic gear set, the location where the output end clutch device being individually installed between the output end of the first transmission device (T101) to the individual transmission wheel system of individual loading end wheel set includes one or more than one of followings, including:

-   (1) installed between the output end of the first transmission     device (T101) and the input end of the individual output end     transmission device; -   (2) installed at the input end of the output end transmission     device; -   (3) installed at the output end of the output end transmission     device; -   (4) installed in series between internal power transmission set of     the individual output end transmission device; -   (5) installed at the input end of the loading end wheel set;

The mentioned output end clutch device include being controlled by manual force or centrifugal force, or controlled through the external operation interface, and driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end.

According to the multi-CVT drive system having epicyclic gear set, a flexible transmission device composed of the limited slip differential or the dual shaft connecting device having slip coupling torque can be further installed at the opposite locations horizontally and coaxially at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets; when the differential operation is performed between the wheel shaft and wheel set at the left side and the wheel shaft and wheel set at the right side combined to the dual shafts of the flexible transmission device, e.g. the differential operation performed by the flexible transmission device while the common load body (L100) is making a turn, through releasing the output end clutch device between the inner wheel set and the first transmission device (T101), the outer wheel set having high rotational speed performs the flexible transmission with rotation differential to the inner wheel set having low rotational speed through the flexible transmission device, such that the rotational speed of the inner wheel set is lower than that of the outer wheel set but still has the driving power; the flexible transmission device includes the coupling torque dual shaft connecting device composed of the coupling device have slip damp, e.g. a flexible transmission device formed with a dual shaft structure through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect, two rotating ends are respectively combined at: one or more than one of opposite locations horizontally and coaxially defined on the following transmission operation sets, including:

-   (1) installed between the wheel shaft connecting the wheel set at     the left side and the wheel set at the right side of the common load     body (L100); -   (2) installed between the opposite input ends of the output end     transmission devices at the left and the right sides of the common     load body (L100); -   (3) installed between the opposite output ends of the output end     clutch devices at the left and the right sides of the common load     body (L100); -   (4) installed between the transmission components having the same     rotational speed while being in the normal straight running state in     the transmission wheel system of the output end transmission devices     at the left and the right sides of the common load body (L100).

According to the multi-CVT drive system having epicyclic gear set, the limited slip differential or the flexible transmission device composed of the dual shaft connecting devices having slip coupling torque installed at the opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the installed wheel sets and the drive operation sets can be all or partially installed. 

1. A multi-CVT drive system having epicyclic gear set, which utilizes the rotary kinetic power of a rotary kinetic power source (P100) to directly drive the epicyclic gear set, or to drive the epicyclic gear set through a transmission device (T101), then a continuous variable transmission (CVT) is individually installed between two output shafts of the epicyclic gear set and the load driven thereby, so the wheel set of the driven load is enabled to randomly perform variation of the driving speed ratio and the driving torque, so as to drive the combined common load; the mentioned common load body (L100) is mainly defined as the frame body of a vehicle, and is installed with a rotary kinetic power source, relative operation and transmission interface devices, and installed with loading wheel sets driven by the rotary kinetic power source and installed with non-powered wheels not being driven by the rotary kinetic power source (P100) according to actual needs, thereby jointly carrying the common load body (L100); The continuous variable transmission of the multi-CVT drive system having epicyclic gear set is individually installed and driven at the wheel sets at two sides of a common load body, and the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing an external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of a continuous variable transmission (CVT100) and a continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; external operation interface (MI100): related to a linear analog type, or digital type, or hybrid type external control device, constituted by a operation mechanisms and/or electromechanical devices, and/or solid state electric circuits which are controlled by manual force, mechanical force or electric power, and served to control the operation status of the rotary kinetic power source (P100) and/or to control the operation of the continuous variable transmission; According to the multi-CVT drive system having epicyclic gear set, a limited slip differential or a stabilize device composed of a dual shaft connecting device having slip coupling torque can be installed at opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets, and when the differential operation is performed between two loads, the stabilize device is served to stabilize the operation of the drive system; the stabilize device includes a limited slip differential, or a coupling torque dual shaft connecting device composed of a coupling device having slip damp, e.g. a dual shaft structure configured by fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect, and two rotating ends of the stabilize device are respectively connected to: one or more than one location of the opposite locations horizontally and coaxially defined on the following transmission operation sets, including: (1) installed between wheel set rotation parts oppositely at the left side and the right side; (2) installed between opposite output ends of the continuous variable transmissions at the left side and the right side; (3) installed between opposite output ends of clutch devices at the left side and the right side; (4) installed between the input end or the output end oppositely at the left side and the right side of the transmission device; (5) installed between the wheel set rotation part at the left side and the wheel set rotation part at the right side; By installing the mentioned stabilize device for the driving operation, when the load varying at individual loading end, or the control required by the operation state of the opposite continuous variable transmissions, or the unstable state during operation, the stabilize device can be served to stabilize the system; the stabilize device can be optionally installed according to actual needs; According to the multi-CVT drive system having epicyclic gear set, between the input end of individual continuous variable transmission to the wheel set of the loading end, a stepped or continuous variable transmission having fixed speed ratio for acceleration or deceleration or changing direction can be further installed at one or more than one of following locations, including: (1) installed at the input end of the continuous variable transmission; (2) installed at the output end of the continuous variable transmission; (3) installed at the input end of the clutch device; (4) installed at the output end of the clutch device; (5) installed at the input end of the wheel set at the loading end; The mentioned transmission device is consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets, and composed of a transmission device having fixed speed ratio for acceleration or deceleration or changing direction, or a manually-operated or automatic or semi-automatic speed ratio varying or belt type continuous variable transmission, or a hydraulic torque converter; the transmission device can be optionally installed according to actual needs; According to the multi-CVT drive system having epicyclic gear set, between the input end of individual continuous variable transmission and the wheel set of the loading end, a clutch device can be further installed at one or more than one of following locations, including: (1) installed at the input end of the continuous variable transmission; (2) installed at the output end of the continuous variable transmission; (3) installed at the input end of the transmission device; (4) installed at the output end of the transmission device; (5) installed at the input end of the wheel set at the loading end; The mentioned clutch device is controlled by manual force or centrifugal force, or controlled by the external operation interface, and can be served as a clutch device or structure having function of performing transmission engaging or releasing while being driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force, and has a rotary input end and a rotary output end; the output end clutch device further includes a function of being driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch device controlling coupling torque through exciting current, or a wet type multi-plate clutch device driven by mechanical force and/or pressure and/or hydraulic force; The structure of the output end clutch device includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The clutch device can be optionally installed according to actual needs; According to the present invention, the multi-CVT drive system having differential epicyclic gear set can be applied in a vehicle or an industry-used, agriculture-used or specially-designed carrier with front wheel drive, or rear wheel drive, or four wheel drive, or multiple wheel drive or driven by belts installed at two sides.
 2. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein it utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the left side wheel set (W100) of the loading end of the common load body (L100), and the continuous variable transmission (CVT200) is installed between the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) and the right side wheel set (W200), thereby forming the drive system capable of being operated in the differential speed and variable speed state, which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT100), the right end output shaft (1012) is served to drive the input end of the continuous variable transmission (CVT200); continuous variable transmission (CVT100), (CVT200): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing an external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of a continuous variable transmission (CVT100) and a continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200); stabilize device (SDT100): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends thereof are respectively connected between the left side wheel set (W100) and the right side wheel set (W200) of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) installed between the wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) can be optionally installed according to actual needs; transmission device (T100), (T200): the output end of the transmission device (T100) is served to drive the left side wheel set (W100) of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the right side wheel set (W200), and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the transmission device (T100) and the transmission device (T200) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction or having switchable multi-step speed ratios, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), and the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200); the output end clutch device (CL100) and the output end clutch device (CL200) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL100), (CL200) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the left side wheel set (W100) and the right side wheel set (W200) of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200).
 3. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein it utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) and the continuous variable transmission (CVT300) are respectively installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) and the continuous variable transmission (CVT400) are installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the speed differential state, which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input ends of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT300), and the right end output shaft (1012) thereof is served to drive the input ends of the continuous variable transmission (CVT200) and the continuous variable transmission (CVT400); continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing the external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; (3) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (4) actively and individually controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (5) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (6) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300) and/or the continuous variable transmission (CVT400); stabilize device (SDT100), (STD200): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends of the stabilize device (SDT100) are respectively connected between the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end, and two rotating ends of the stabilize device (SDT200) are respectively connected between the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) and/or the stabilize device (SDT200) installed between the two opposite wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) and/or the stabilize device (SDT200) can be optionally installed according to actual needs; transmission device (T100), (T200), (T300), (T400): the output end of the transmission device (T100) is served to drive the wheel set (W100) at the rear left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the wheel set (W200) at the rear right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the output end of the transmission device (T300) is served to drive the wheel set (W300) at the front left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT300); the output end of the transmission device (T400) is served to drive the wheel set (W400) at the front right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT400); the transmission devices (T100), (T200), (T300), (T400) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction, or having switchable multi-step speed ratios, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) and/or (T300), (T400) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200), (CL300), (CL400): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200), the output end clutch device (CL300) is installed between the output end of the continuous variable transmission (CVT300) and the wheel set (W300) for controlling the continuous variable transmission (CVT300) to output the rotary kinetic energy to the wheel set (W300), and the output end clutch device (CL400) is installed between the output end of the continuous variable transmission (CVT400) and the wheel set (W400) for controlling the continuous variable transmission (CVT400) to output rotation kinetic energy to the wheel set (W400); the output end clutch devices (CL100), (CL200), (CL300), (CL400) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200), (CL300), (CL400) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); if the operation in differential speed are performed between the wheel set (W100) and the wheel set (W200) and between the wheel set (W300) and the wheel set (W400) at the same time, the interactive differential operation is jointly formed between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101).
 4. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein it utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT500) are respectively installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side, the wheel set (W300) at the front left side and the wheel set (W500) at the middle left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) and the continuous variable transmission (CVT400) and the continuous variable transmission (CVT600) are installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side, the wheel set (W400) at the front right side and the wheel set (W600) at the middle right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the speed differential state, which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input ends of the continuous variable transmissions (CVT100), (CVT300), (CVT500), and the right end output shaft (1012) thereof is served to drive the input ends of the continuous variable transmissions (CVT200), (CVT400), (CVT600); continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400), (CVT500), (CVT600): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing the external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; (3) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (4) actively and individually controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (5) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600); (6) actively and individually controlling the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (7) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300), the continuous variable transmission (CVT400), the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600); (8) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300), the continuous variable transmission (CVT400), the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500), and/or the continuous variable transmission (CVT600), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500), and/or the continuous variable transmission (CVT600); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500) and/or the continuous variable transmission (CVT600); stabilize device (SDT100), (STD200), (STD300): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends of the stabilize device (SDT100) are respectively connected between the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end, two rotating ends of the stabilize device (SDT200) are respectively connected between the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end, and two rotating ends of the stabilize device (SDT300) are respectively connected between the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) and/or the stabilize device (SDT200) and/or the stabilize device (SDT300) installed between the two opposite wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) and/or the stabilize device (SDT200) and/or the stabilize device (SDT300) can be optionally installed according to actual needs; transmission device (T100), (T200), (T300), (T400), (T500), (T600): the output end of the transmission device (T100) is served to drive the wheel set (W100) at the rear left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the wheel set (W200) at the rear right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the output end of (T300) is served to drive the wheel set (W300) at the front left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT300); the output end of the transmission device (T400) is served to drive the wheel set (W400) at the front right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT400); the output end of the transmission device (T500) is served to drive the wheel set (W500) at the middle left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT500); the output end of the transmission device (T600) is served to drive the wheel set (W600) at the middle right side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT600); the transmission devices (T100), (T200), (T300), (T400), (T500), (T600) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction or having switchable multi-step speed ratios, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) and/or (T300), (T400), (T500), (T600) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200), the output end clutch device (CL300) is installed between the output end of the continuous variable transmission (CVT300) and the wheel set (W300) for controlling the continuous variable transmission (CVT300) to output the rotary kinetic energy to the wheel set (W300), the output end clutch device (CL400) is installed between the output end of the continuous variable transmission (CVT400) and the wheel set (W400) for controlling the continuous variable transmission (CVT400) to output the rotary kinetic energy to the wheel set (W400), the output end clutch device (CL500) is installed between the output end of the continuous variable transmission (CVT500) and the wheel set (W500) for controlling the continuous variable transmission (CVT500) to output the rotary kinetic power to the wheel set (W500), and the output end clutch device (CL600) is installed between the output end of the continuous variable transmission (CVT600) and the wheel set (W600) for controlling the continuous variable transmission (CVT600) to output the rotary kinetic power to the wheel set (W600); the output end clutch devices (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400), (CL500), (CL600) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); accordingly, when the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) are individually adjusted along with the load varying of the wheel set (W500) and the wheel set (W600) of the loading end, and the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT500) and the input end of the continuous variable transmission (CVT600); if the operation in differential speed are performed between the wheel set (W100) and the wheel set (W200) and/or between the wheel set (W300) and the wheel set (W400) and/or between the wheel set (W500) and the wheel set (W600) at the same time, the interactive differential operation is jointly formed between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) and/or between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) and/or between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), and between the left end output shaft (1011) and the right end output shaft (1012) of the two output ends of the first epicyclic gear set (EG101).
 5. A multi-CVT drive system having epicyclic gear set as claimed in claim 3, wherein it utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is individually installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) is individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end at the right side of the common load body (L100); the rotary output end of the rotary kinetic power source (P100) is directly or through the transmission device (T101) to drive the second epicyclic gear set (EG102), and the continuous variable transmission (CVT300) is individually installed between the left end output shaft (1021) of the two output ends of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT400) is individually installed between the right end output shaft (1022) and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the differential speed state, which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101) and the second epicyclic gear set (EG102); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT100), and the right end output shaft (1012) thereof is served to drive the input end of the continuous variable transmission (CVT200); second epicyclic gear set (EG102): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by the engine, or driven by the engine through the transmission device (T101); the left end output shaft (1021) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT300), and the right end output shaft (1022) is served to drive the input end of the continuous variable transmission (CVT400); continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing the external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; (3) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (4) actively and individually controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (5) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (6) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400); stabilize device (SDT100), (STD200): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends of the stabilize device (SDT100) are respectively connected between the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end, and two rotating ends of the stabilize device (SDT200) are respectively connected between the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) and/or the stabilize device (SDT200) installed between the two opposite wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) and/or the stabilize device (SDT200) can be optionally installed according to actual needs; transmission device (T100), (T200), (T300), (T400): the output end of the transmission device (T100) is served to drive the wheel set (W100) at the rear left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the wheel set (W200) at the rear right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the output end of the transmission device (T300) is served to drive the wheel set (W300) at the front left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT300); the output end of the transmission device (T400) is served to drive the wheel set (W400) at the front right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT400); the transmission devices (T100), (T200), (T300), (T400) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction or having switchable multi-step speed ratios, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) and/or (T300), (T400) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200), (CL300), (CL400): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200), the output end clutch device (CL300) is installed between the output end of the continuous variable transmission (CVT300) and the wheel set (W300) for controlling the continuous variable transmission (CVT300) to output the rotary kinetic energy to the wheel set (W300), and the output end clutch device (CL400) is installed between the output end of the continuous variable transmission (CVT400) and the wheel set (W400) for controlling the continuous variable transmission (CVT400) to output the rotary kinetic energy to the wheel set (W400); the output end clutch devices (CL100), (CL200), (CL300), (CL400) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200), (CL300), (CL400) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1021) and the right end output shaft (1022) of the two output ends of the second epicyclic gear set (EG102) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400).
 6. A multi-CVT drive system having epicyclic gear set as claimed in claim 4, wherein it utilizes the rotary output end of the rotary kinetic power source (P100) of the common load body (L100) to directly or through the transmission device (T101) to drive the first epicyclic gear set (EG101), and the continuous variable transmission (CVT100) is individually installed between the left end output shaft (1011) of the two output ends of the first epicyclic gear set (EG101) and the wheel set (W100) at the rear left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT200) is individually installed between the right end output shaft (1012) and the wheel set (W200) at the rear right side of the loading end at the right side of the common load body (L100); and utilizes the rotary output end of the rotary kinetic power source (P100) to directly or through the transmission device (T101) to drive the second epicyclic gear set (EG102), and the continuous variable transmission (CVT300) is individually installed between the left end output shaft (1021) of the two output ends of the second epicyclic gear set (EG102) and the wheel set (W300) at the front left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT400) is individually installed between the right end output shaft (1022) and the wheel set (W400) at the front right side of the loading end at the right side of the common load body (L100); and utilizes the rotary output end of the rotary kinetic power source (P100) to directly or through the transmission device (T101) to drive the third epicyclic gear set (EG103), and the continuous variable transmission (CVT500) is individually installed between the left end output shaft (1031) of the two output ends of the third epicyclic gear set (EG103) and the wheel set (W500) at the middle left side of the loading end at the left side of the common load body (L100), and the continuous variable transmission (CVT600) is individually installed between the right end output shaft (1032) and the wheel set (W600) at the middle right side of the loading end at the right side of the common load body (L100), thereby forming the drive system capable of being operated in the differential speed state, which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101) and the second epicyclic gear set (EG102) and the third epicyclic gear set (EG103); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmissions (CVT100), and the right end output shaft (1012) thereof is served to drive the input end of the continuous variable transmission (CVT200); second epicyclic gear set (EG102): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by the engine, or driven by the engine through the transmission device (T101); the left end output shaft (1021) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT300), and the right end output shaft (1022) thereof is served to drive the input end of the continuous variable transmission (CVT400); third epicyclic gear set (EG103): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by the engine, or driven by the engine through the transmission device (T101); the left end output shaft (1031) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT500), and the right end output shaft (1032) thereof is served to drive the input end of the continuous variable transmission (CVT600); continuous variable transmission (CVT100), (CVT200), (CVT300), (CVT400), (CVT500), (CVT600): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing the external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; (3) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400); (4) actively and individually controlling the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (5) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600); (6) actively and individually controlling the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmission; (7) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300), the continuous variable transmission (CVT400), the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600); (8) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100), the continuous variable transmission (CVT200), the continuous variable transmission (CVT300), the continuous variable transmission (CVT400), the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500), and/or the continuous variable transmission (CVT600), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100), and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500), and/or the continuous variable transmission (CVT600); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), and/or the continuous variable transmission (CVT300), and/or the continuous variable transmission (CVT400), and/or the continuous variable transmission (CVT500) and/or the continuous variable transmission (CVT600); stabilize device (SDT100), (STD200), (STD300): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends of the stabilize device (SDT100) are respectively connected between the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end, two rotating ends of the stabilize device (SDT200) are respectively connected between the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end, and two rotating ends of the stabilize device (SDT300) are respectively connected between the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) and/or the stabilize device (SDT200) and/or the stabilize device (SDT300) installed between the two opposite wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) and/or the stabilize device (SDT200) and/or the stabilize device (SDT300) can be optionally installed according to actual needs; transmission device (T100), (T200), (T300), (T400), (T500), (T600): the output end of the transmission device (T100) is served to drive the wheel set (W100) at the rear left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the wheel set (W200) at the rear right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the output end of the transmission device (T300) is served to drive the wheel set (W300) at the front left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT300); the output end of the transmission device (T400) is served to drive the wheel set (W400) at the front right side, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT400); the output end of the transmission device (T500) is served to drive the wheel set (W500) at the middle left side of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT500); the output end of the transmission device (T600) is served to drive the wheel set (W600) at the middle right side of the loading end, and the input end is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT600); the transmission devices (T100), (T200), (T300), (T400), (T500), (T600) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) and/or (T300), (T400), (T500), (T600) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200), the output end clutch device (CL300) is installed between the output end of the continuous variable transmission (CVT300) and the wheel set (W300) for controlling the continuous variable transmission (CVT300) to output the rotary kinetic energy to the wheel set (W300), the output end clutch device (CL400) is installed between the output end of the continuous variable transmission (CVT400) and the wheel set (W400) for controlling the continuous variable transmission (CVT400) to output the rotary kinetic energy to the wheel set (W400), the output end clutch device (CL500) is installed between the output end of the continuous variable transmission (CVT500) and the wheel set (W500) for controlling the continuous variable transmission (CVT500) to output the rotary kinetic power to the wheel set (W500), and the output end clutch device (CL600) is installed between the output end of the continuous variable transmission (CVT600) and the wheel set (W600) for controlling the continuous variable transmission (CVT600) to output the rotary kinetic power to the wheel set (W600); the output end clutch devices (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL 100), (CL200), (CL300), (CL400), (CL500), (CL600) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200), (CL300), (CL400), (CL500), (CL600) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the wheel set (W100) at the rear left side and the wheel set (W200) at the rear right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200); when the wheel set (W300) at the front left side and the wheel set (W400) at the front right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400) are individually adjusted along with the load varying of the wheel set (W300) and the wheel set (W400) of the loading end, and the left end output shaft (1021) and the right end output shaft (1022) of the two output ends of the second epicyclic gear set (EG102) perform differential operation for adjustment so as to drive in differential speed between the input end of the continuous variable transmission (CVT300) and the input end of the continuous variable transmission (CVT400); accordingly, when the wheel set (W500) at the middle left side and the wheel set (W600) at the middle right side of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600) are individually adjusted along with the load varying of the wheel set (W500) and the wheel set (W600) of the loading end, and the left end output shaft (1031) and the right end output shaft (1032) of the two output ends of the third epicyclic gear set (EG103) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT500) and the input end of the continuous variable transmission (CVT600).
 7. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein a direction changing signal sensor (S100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmissions installed at two sides of the common load body (L100), thereby enhancing the performance of the drive for changing direction.
 8. A multi-CVT drive system having epicyclic gear set as claimed in claim 2, further a direction changing signal sensor (S100) is installed and the signal of a direction changing signal sensor (S100) is transmitted to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), which mainly consists of: rotary kinetic power source (P100): constituted by a power source outputting kinetic power through rotation, e.g. an internal combustion engine, external combustion engine, spring power source, hydraulic power source, pressure power source, flywheel power source or manual force, or animal force, wind power source, and/or composed of a AC or DC, brush or brushless, synchronous or non-synchronous, internal rotating or external rotating type rotary motor installed with relative control devices and electrically driven by power supply and/or storage device; the output end thereof includes outputting directly or outputting through a clutch device; input end clutch device (CL101): installed between the output end of the rotary kinetic power source (P100) and the input end of the first transmission device (T101), capable of controlling the rotary kinetic power source (P100) to control the transmission or termination of the rotary kinetic power to the first transmission device (T101); the input end clutch device (CL101) includes being controlled by manual force or centrifugal force, or being controlled through the external operation interface (MI100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the input end clutch device (CL101) can be optionally installed according to actual needs; transmission device (T101): constituted by a transmission device having fixed speed ratio or variable speed ratio or continuous variable speed and consisted of mechanical gear sets, or chain sets or pulley sets or linkage rod sets; installed between the rotary kinetic power source (P100) and the first epicyclic gear set (EG101); the transmission device (T101) can be optionally adopted according to actual needs; first epicyclic gear set (EG101): constituted by an epicyclic gear set having an input shaft and two output shafts capable of differentially operating, directly driven by the rotary kinetic power provided by an engine, or driven by the engine through the transmission device (T101); the left end output shaft (1011) of the two output shafts capable of differentially operating is served to drive the input end of the continuous variable transmission (CVT100), the right end output shaft (1012) is served to drive the input end of the continuous variable transmission (CVT200); continuous variable transmission (CVT100), (CVT200): the continuous variable transmission (CVT) is e.g. structured by continuous variable transmissions having several structural configurations such as a rubber belt type, metal belt type, chain type continuous variable transmission, or an electric continuous variable transmission (ECVT), or a friction disk type, or a conventional different-shaft type continuous variable transmission, which includes a continuous variable transmission capable of individually and automatically varying speed ratio along with the loading torque, or a continuous variable transmission capable of individually and passively varying speed ratio automatically along with the driving rotation speed at the input end and/or the loading torque, or a continuous variable transmission utilizing the external operation interface (MI100) to actively control the speed ratio, so as to perform all or a part of the following controls, including: (1) actively and synchronously controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200); (2) actively and individually controlling the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) to be different for actively controlling the proportion of different speed ratios between individual continuous variable transmissions; external operation interface (MI100): constituted by a mechanical operation device control by manual force or system, and structured by a linear analog type or digital type or hybrid type electromechanical device and/or solid state electric circuit, and provided for directly controlling the rotary kinetic power source (P100), and/or the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200), or for controlling the control unit (ECU100) so as to further control the operation state of the rotary kinetic power source (P100), and/or control the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200); control unit (ECU100): constituted by electromechanical devices and/or electric circuit components and/or power semiconductors and/or microprocessors and software, for being connected to an electric power source (B100) and controlled by the external operation interface (MI100) or controlled by the direction changing signal sensor (S100), operated through the signal of controlling system operation state, for controlling the operation state of the rotary kinetic power source (P100), and/or controlling the operation speed ratios of the continuous variable transmission (CVT100) and/or the continuous variable transmission (CVT200); direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100); stabilize device (SDT100): constituted by a limited slip differential, or a dual shaft connecting device composed of a coupling device having slip damp coupling torque, including a stabilize device with the dual shaft structure configured through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect; wherein two rotating ends thereof are respectively connected between the left side wheel set (W100) and the right side wheel set (W200) of the loading end; during the driving operation, if the load varying at the individual two sides of the loading end causes the unstable operation, with the slip damp coupling torque of the stabilize device (SDT100) installed between the wheel sets at the left and right sides, the operation of the system can be stabilized; the stabilize device (SDT100) can be optionally installed according to actual needs; transmission device (T100), (T200): the output end of the transmission device (T100) is served to drive the left side wheel set (W100) of the loading end, and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT100); the output end of the transmission device (T200) is served to drive the right side wheel set (W200), and the input end thereof is driven by the rotary kinetic power from the output end of the continuous variable transmission (CVT200); the transmission device (T100) and the transmission device (T200) are consisted of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or changing direction or having switchable multi-step speed ratios, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter; the transmission devices (T100), (T200) can be optionally installed according to actual needs; output end clutch device (CL100), (CL200): the output end clutch device (CL100) is installed between the output end of the continuous variable transmission (CVT100) and the wheel set (W100) for controlling the continuous variable transmission (CVT100) to output the rotary kinetic power to the wheel set (W100), and the output end clutch device (CL200) is installed between the output end of the continuous variable transmission (CVT200) and the wheel set (W200) for controlling the continuous variable transmission (CVT200) to output the rotary kinetic power to the wheel set (W200); the output end clutch device (CL100) and the output end clutch device (CL200) include being controlled by manual force or centrifugal force, or controlled through the external operation interface (MI100) and the control unit (ECU100), and formed as a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end; the output end clutch device can further includes being driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for controlling the coupling torque between engaging and releasing, e.g. an electromagnetic wet type multi-plate clutch controlling coupling torque through magnetic exciting current, or a wet type multi-plate clutch driven by mechanical force and/or air pressure and/or hydraulic force; The structure of the output end clutch device (CL100), (CL200) includes: (1) a clutch device or structure driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing; (2) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for linearly controlling the continuous coupling torque between transmission engaging and releasing; (3) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having torque limited coupling function which is smaller than the engaging torque, after being released; (4) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is increased while the rotation differential is increased, after being released; (5) driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a linear damp function which is smaller than the engaging torque and is reduced while the rotation differential is increased, after being released; (6) (1) to (5) including a radial clutch device; (7) (1) to (5) including an axial clutch device; The output end clutch device (CL100), (CL200) can be optionally installed according to actual needs; common load body (L100) can be provided with one or more than one non-powered wheels according to actual needs; With the operation of the mentioned devices, when the common load body (L100) is driven to operate by the rotary kinetic power source (P100), and the left side wheel set (W100) and the right side wheel set (W200) of the loading end are operated in differential speeds, the speed ratios of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200) are individually adjusted along with the load varying of the wheel set (W100) and the wheel set (W200) of the loading end, and the two output ends of the first epicyclic gear set (EG101) perform differential operation for adjustment, so as to drive in differential speed between the input end of the continuous variable transmission (CVT100) and the input end of the continuous variable transmission (CVT200).
 9. A multi-CVT drive system having epicyclic gear set as claimed in claim 3, wherein a direction changing signal sensor (S100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), thereby enhancing the performance of the drive for changing direction.
 10. A multi-CVT drive system having epicyclic gear set as claimed in claim 4, wherein a direction changing signal sensor (S 100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), thereby enhancing the performance of the drive for changing direction.
 11. A multi-CVT drive system having epicyclic gear set as claimed in claim 5, wherein a direction changing signal sensor (S100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), thereby enhancing the performance of the drive for changing direction.
 12. A multi-CVT drive system having epicyclic gear set as claimed in claim 6, wherein a direction changing signal sensor (S100) can be further installed, so when changing directions, the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), thereby enhancing the performance of the drive for changing direction.
 13. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein the continuous variable transmissions, output end clutch devices and transmission devices installed at two sides of the common load body (L100) are combined to the two output ends of individual epicyclic gear set.
 14. A multi-CVT drive system having epicyclic gear set as claimed in claim 2, wherein the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), the output end clutch devices (CL100), (CL200), and transmission devices (T100), (T200) are combined at two output sides of the first epicyclic gear set (EG101).
 15. A multi-CVT drive system having epicyclic gear set as claimed in claim 3, wherein the continuous variable transmissions (CVT100, CVT200, CVT300, CVT400), the output end clutch devices (CL100, CL200, CL300, CL400), and transmission devices (T100, T200, T300, T400) are individually combined at two output sides of the first epicyclic gear set (EG101).
 16. A multi-CVT drive system having epicyclic gear set as claimed in claim 4, wherein the continuous variable transmissions (CVT100, CVT200, CVT300, CVT400, CVT500, CVT600), the output end clutch devices (CL100, CL200, CL300, CL400, CL500, CL600), and transmission devices (T100, T200, T300, T400, T500, T600) are individually combined at two output sides of the first epicyclic gear set (EG101).
 17. A multi-CVT drive system having epicyclic gear set as claimed in claim 5, wherein the continuous variable transmissions (CVT100, CVT200, CVT300, CVT400), the output end clutch devices (CL100, CL200, CL300, CL400), and transmission devices (T100, T200, T300, T400) are individually combined at two output sides of the first epicyclic gear set (EG101) and the second epicyclic gear set (EG102).
 18. A multi-CVT drive system having epicyclic gear set as claimed in claim 6, wherein the continuous variable transmissions (CVT100, CVT200, CVT300, CVT400, CVT500, CVT600), the output end clutch devices (CL100, CL200, CL300, CL400, CL500, CL600), and transmission devices (T100, T200, T300, T400, T500, T600) are individually combined at two output sides of the first epicyclic gear set (EG101), the second epicyclic gear set (EG102) and the third epicyclic gear set (EG103).
 19. A multi-CVT drive system having epicyclic gear set as claimed in claim 13, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmissions installed at two sides of the common load body (L100), thereby enhancing the performance of the drive for changing direction.
 20. A multi-CVT drive system having epicyclic gear set as claimed in claim 14, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching of the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), thereby enhancing the performance of the drive for changing direction and in which: direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100).
 21. A multi-CVT drive system having epicyclic gear set as claimed in claim 15, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), thereby enhancing the performance of the drive for changing direction and in which: direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100).
 22. A multi-CVT drive system having epicyclic gear set as claimed in claim 16, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), thereby enhancing the performance of the drive for changing direction and in which: direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100).
 23. A multi-CVT drive system having epicyclic gear set as claimed in claim 17, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), and between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), thereby enhancing the performance of the drive for changing direction and in which: direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100).
 24. A multi-CVT drive system having epicyclic gear set as claimed in claim 18, wherein the signal of the direction changing signal sensor (S100) can be sent to the control unit (ECU100) for controlling the relative speed ratio switching between the continuous variable transmission (CVT100) and the continuous variable transmission (CVT200), between the continuous variable transmission (CVT300) and the continuous variable transmission (CVT400), and between the continuous variable transmission (CVT500) and the continuous variable transmission (CVT600), thereby enhancing the performance of the drive for changing direction and in which: direction changing signal sensor (S 100): defined as one or more than one physical sensors, for detecting signals relative to direction changing including one or more than one of following signals: a signal of direction changing degree from the steering machine, a signal of inclined angle of vehicle body, a signal of vehicle idling, a signal of upward/downward slope, a signal of acceleration or deceleration, and together with the signal of the external operation interface (MI100) to be transmitted to the control unit (ECU100).
 25. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein an output end transmission device composed of a stepped or continuous variable transmission having fixed speed ratio for acceleration or deceleration or direction changing can be further installed between the output end of the transmission device (T101) and the individual loading end wheel set; the mentioned output end transmission device is composed of mechanical gear sets, or chain sets, pulley sets or linkage rod sets, and structured as a transmission device having fixed speed ratio for acceleration or deceleration or direction changing, or a manually-operated or automatic or semi-automatic speed ratio or belt type continuous variable transmission, or a hydraulic type torque converter.
 26. A multi-CVT drive system having epicyclic gear set as claimed in claim 1, wherein the location where the output end clutch device being individually installed between the output end of the transmission device (T101) to the individual transmission wheel system of individual loading end wheel set includes one or more than one of followings, including: (1) installed between the output end of the first transmission device (T101) and the input end of the individual output end transmission device; (2) installed at the input end of the output end transmission device; (3) installed at the output end of the output end transmission device; (4) installed in series between internal power transmission set of the individual output end transmission device; (5) installed at the input end of the loading end wheel set; The mentioned output end clutch device include being controlled by manual force or centrifugal force, or controlled through the external operation interface, and driven by electric force and/or magnetic force and/or mechanical force and/or air pressure and/or hydraulic force for performing transmission engaging or releasing, and having a rotary input end and a rotary output end.
 27. A multi-CVT drive system having epicyclic gear set as claimed in claim 18, wherein a flexible transmission device composed of the limited slip differential or the dual shaft connecting device having slip coupling torque can be further installed at the opposite locations horizontally and coaxially at two sides along the driving direction of the common load body (L100) and between the same transmission operation sets; when the differential operation is performed between the wheel shaft and wheel set at the left side and the wheel shaft and wheel set at the right side combined to the dual shafts of the flexible transmission device, e.g. the differential operation performed by the flexible transmission device while the common load body (L100) is making a turn, through releasing the output end clutch device between the inner wheel set and the first transmission device (T101), the outer wheel set having high rotational speed performs the flexible transmission with rotation differential to the inner wheel set having low rotational speed through the flexible transmission device, such that the rotational speed of the inner wheel set is lower than that of the outer wheel set but still has the driving power; the flexible transmission device includes the coupling torque dual shaft connecting device composed of the coupling device have slip damp, e.g. a flexible transmission device formed with a dual shaft structure through fluid viscous effect, hydrodynamic damp effect, mechanical friction effect, electromagnetic vortex effect or power generation reverse torque effect, two rotating ends are respectively combined at: one or more than one of opposite locations horizontally and coaxially defined on the following transmission operation sets, including: (1) installed between the wheel shaft connecting the wheel set at the left side and the wheel set at the right side of the common load body (L100); (2) installed between the opposite input ends of the output end transmission devices at the left and the right sides of the common load body (L100); (3) installed between the opposite output ends of the output end clutch devices at the left and the right sides of the common load body (L100); (4) installed between the transmission components having the same rotational speed while being in the normal straight running state in the transmission wheel system of the output end transmission devices at the left and the right sides of the common load body (L100); According to the multi-CVT drive system having epicyclic gear set, the limited slip differential or the flexible transmission device composed of the dual shaft connecting devices having slip coupling torque installed at the opposite locations horizontally and coaxially defined at two sides along the driving direction of the common load body (L100) and between the installed wheel sets and the drive operation sets can be all or partially installed. 